CN102184294A - Turbine aerodynamics performance virtual testing system and method for small turbine engine - Google Patents
Turbine aerodynamics performance virtual testing system and method for small turbine engine Download PDFInfo
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Abstract
The invention provides a turbine aerodynamics performance virtual testing system for a small turbine engine, which comprises a three-dimensional modeling module, a fluid dynamics modeling module, an assembling module, a three-dimensional computing module, a postprocessing module, a testing report and evaluation report generating module, a database managing module and a user management module. The turbine aerodynamics performance virtual testing system for the small turbine engine, provided by the embodiment of the invention, can be used for partially replacing a turbine actual test, thereby shortening turbine test period and reducing test risk and actual test cost. In addition, the turbine aerodynamics performance virtual testing system for the small turbine engine, provided by the embodiment, can be used for analyzing and evaluating pneumatic performances of a turbine and guiding the design of the turbine. The embodiment of the invention has an important promotion function for realizing the transition of an engine from a traditional design to a prediction design.
Description
Technical field
The present invention relates to engine manufacturing and design field, particularly a kind of small turbine engine turbine pneumatic performance dummy experiment system and test method.
Background technology
In the small turbine engine development process, obtain the genuine property of turbine part by turbine part test, have vital role for the assessment of engine overall performance.Virtual experiment technology is as digitized experimental technique, and integrated emulation technology, computer technology, the network information technology, experimental technique etc. are considered to improve armament systems or product development level, strengthens the effective technology means of innovation and competitive power.
External virtual experiment technology begins to rise in the eighties of last century the eighties, uses morely among the Weapon System Development at tip, national defence field, but is not also carrying out any effective research aspect the put-put virtual test.
Summary of the invention
The present invention proposes a kind of small turbine engine turbine pneumatic performance dummy experiment system and test method.
For achieving the above object, one aspect of the present invention has proposed a kind of small turbine engine turbine pneumatic performance dummy experiment system, comprise the three-dimensional modeling module, the fluid dynamics MBM, Knockdown block, the three-dimensional computations module, post-processing module, test report and assessment report generation module, database management module and user management module, described three-dimensional modeling module is used to adopt the UG module with parametric modeling function to set up exerciser volute three-dimensional model and testpieces three-dimensional model, wherein, described parametric modeling is to volute, the description that the geometry of testpieces uses several structural parameters to carry out; Volute three-dimensional model and testpieces three-dimensional model that described fluid dynamics MBM is used for generating according to the three-dimensional modeling module adopt CFD software (IcemCFD or TurboGrid) to carry out the foundation of hydrodinamical model, to generate volute hydrodinamical model and testpieces hydrodinamical model; Described Knockdown block is used for the volute hydrodinamical model and the testpieces hydrodinamical model of the generation of convection cell Dynamic Modeling module to be assembled according to the actual physical state, can be used for the computation model of aeroperformance test with generation; Described three-dimensional computations module is used for carrying out test simulation according to operating condition of test that is provided with and test working medium in conjunction with the computation model that is used for the aeroperformance test that described Knockdown block generates, and before calculating, in crucial cross section control point information is set, this information spinner will comprise the position and the monitoring parameter of control point, as pressure, temperature etc.; Described post-processing module is used for carrying out reprocessing analysis according to test findings, with parameter distribution and the turbine three-dimensional character data that obtain each stream interface; Described test report and assessment report generation module are used for amounting to according to test findings and test situation, and finish test report and test platform assessment report; Described database management module is used for data are managed, test model, operating condition of test parameter, test findings data, family curve, parameter distribution figure to virtual test carry out storage administration, and provide retrieval for the user, inquiry and statistics and analysis and evaluation, wherein, described test model comprises volute three-dimensional model, testpieces three-dimensional model, volute hydrodinamical model and testpieces hydrodinamical model; Described user management module is used for the management of user's fulfillment rights, so that the different rights personnel have different visits, revise authority virtual test charter, virtual test scheme, virtual test module.
The invention allows for a kind of method that adopts aforesaid small turbine engine turbine pneumatic performance dummy experiment system to test, may further comprise the steps: make volute to generate volute three-dimensional model and volute hydrodinamical model; Make testpieces to generate testpieces three-dimensional model and testpieces hydrodinamical model; Described volute hydrodinamical model and described testpieces hydrodinamical model are spliced the computation model that can be used for the aeroperformance test with generation, and carry out the full tunnel test according to operating condition of test that is provided with and test working medium.
The small turbine engine turbine pneumatic performance dummy experiment system of the embodiment of the invention can partly replace the turbine actual loading test, shortens the turbine test period, reduces empirical risk and actual test cost.In addition, the small turbine engine turbine pneumatic performance dummy experiment system of the embodiment of the invention can also be analyzed and assess the aeroperformance of turbine, instructs the design of turbine.The embodiment of the invention is for realizing that the transformation of engine from " traditional design " to " forecasting type design " has important facilitation.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the small turbine engine turbine pneumatic performance dummy experiment system structural drawing of the embodiment of the invention;
Fig. 2 is the virtual test method process flow diagram of the embodiment of the invention;
Fig. 3 is that the volute of the embodiment of the invention is made process flow diagram;
Fig. 4 is that the testpieces of the embodiment of the invention is made process flow diagram;
Fig. 5 is the full tunnel experiment process figure of the embodiment of the invention;
Fig. 6 is the making test program sub-process synoptic diagram of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
The small turbine engine turbine pneumatic performance dummy experiment system of the embodiment of the invention is realized by the virtual platform of building networking, carry out virtual test with aeroperformance to the small turbine engine turbine part, thereby the short turbodrill test period, reduce empirical risk and actual test cost.As shown in Figure 1, be the small turbine engine turbine pneumatic performance dummy experiment system structural drawing of the embodiment of the invention.This small turbine engine turbine pneumatic performance dummy experiment system comprises three-dimensional modeling module 100, fluid dynamics MBM 200, Knockdown block 300, three-dimensional computations module 400, post-processing module 500, test report and assessment report generation module 600, database management module 700, user management module 800.
Wherein, the three-dimensional modeling module 100 main UG modules (UnigraphicsNX) with parametric modeling function that adopt are carried out the foundation of exerciser volute three-dimensional model and testpieces three-dimensional model.Among embodiments of the invention, parametric modeling promptly uses several structural parameters to be described to the geometry of volute, testpieces, as length, width, thickness or diameter, radius etc.When the structure size of this volute, testpieces changes, only need modification to describe the parameter value of this volute, testpieces and do not need to revise model itself.
Wherein, fluid dynamics MBM 200 adopts CFD software (IcemCFD and TurboGrid software) to carry out the foundation of hydrodinamical model according to volute three-dimensional model and the testpieces three-dimensional model that three-dimensional modeling module 100 generates, to generate volute hydrodinamical model and testpieces hydrodinamical model.
Wherein, Knockdown block 300 is used for the volute hydrodinamical model and the testpieces hydrodinamical model of 200 generations of convection cell Dynamic Modeling module to be assembled, and generates the computation model that can be used for the aeroperformance test.Particularly, the volute computation model and the testpieces computation model that will can be used for the aeroperformance test splice according to its actual physical state, make it become a complete model that can be used for calculating.
According to the test mission book operating condition of test, test working medium are set.Three-dimensional computations module 400 is carried out test simulation according to operating condition of test that is provided with and test working medium in conjunction with the computation model that is used for the aeroperformance test that Knockdown block 300 generates.The parameter that also can monitor crucial cross section among process of the test changes.Before calculating, in crucial cross section control point information is set, this information spinner will comprise the position (D coordinates value) and the monitoring parameter of control point, as pressure, temperature etc.
Test report and assessment report generation module 600 are used for summarizing according to test findings and test situation, and finish test report and test platform assessment report.
The small turbine engine turbine pneumatic performance dummy experiment system of the embodiment of the invention has database management function, information such as test model that can be by 700 pairs of virtual tests of database management module, operating condition of test parameter, test findings data, family curve, parameter distribution figure are carried out storage administration, and for the user provides retrieval, the function of inquiry and statistics and analysis and evaluation.
As shown in Figure 2, be the virtual test method process flow diagram of the embodiment of the invention, this method is based on above-mentioned small turbine engine turbine pneumatic performance dummy experiment system.This method may further comprise the steps:
Step S201 makes volute, generates volute three-dimensional model and volute hydrodinamical model.Wherein, volute comprises six parts, is respectively import 1 (jk1), import 2 (jk2), preceding basin (qp), back basin (hp), outlet 1 (ck1), outlet 2 (ck2).The manufacturing process of volute is at first to make six parts, merges six parts then and generates volute.The manufacturing process of six parts is that at first UG creates file how much, generate the volute three-dimensional model, generate the hydrodinamical model of six parts of volute then by Icem, merge the hydrodinamical model of six parts at last by CFX, generate the volute hydrodinamical model.As shown in Figure 3, make process flow diagram for the volute of the embodiment of the invention.
Step S202 makes testpieces, generates testpieces three-dimensional model and testpieces hydrodinamical model.The making of testpieces is according to selecting for use the difference of mesh tool to provide two kinds of production methods, IcemCFD mode and TurboGrid mode.
Mode one, IcemCFD mode:
At first create the dot file of stator blade and movable vane by special design software, then by UG software creation three-dimensional model, create the hydrodinamical model of stator blade and movable vane again by IcemCFD, merge the hydrodinamical model of stator blade and movable vane at last by CFX, generate the testpieces hydrodinamical model.
Mode two, TurboGrid mode:
At first create the dot file of stator blade and movable vane by special design software, then by UG software creation three-dimensional model, create the hydrodinamical model of stator blade and movable vane again by TurboGrid, merge the hydrodinamical model of stator blade and movable vane at last by CFX, generate the testpieces hydrodinamical model.。
As shown in Figure 4, make process flow diagram for the testpieces of the embodiment of the invention.
Need to prove among the embodiment of the invention do not have ordinal relation between step S201 and the S202.
Step S203 carries out the full tunnel test.At first merge volute hydrodinamical model and testpieces hydrodinamical model, on volute after the merging and testpieces, begin test by duty parameter and fluid properties are set then, carry out reprocessing analysis after the test, and generate test report.As shown in Figure 5, be the full tunnel experiment process figure of the embodiment of the invention.As shown in Figure 6, be the making test program sub-process synoptic diagram of the embodiment of the invention.
The small turbine engine turbine pneumatic performance dummy experiment system of the embodiment of the invention can partly replace the turbine actual loading test, shortens the turbine test period, reduces empirical risk and actual test cost.In addition, the small turbine engine turbine pneumatic performance dummy experiment system of the embodiment of the invention can also be analyzed and assess the aeroperformance of turbine, instructs the design of turbine.The embodiment of the invention is for realizing that the transformation of engine from " traditional design " to " forecasting type design " has important facilitation.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiment.
Claims (2)
1. small turbine engine turbine pneumatic performance dummy experiment system, it is characterized in that, comprise three-dimensional modeling module, fluid dynamics MBM, Knockdown block, three-dimensional computations module, post-processing module, test report and assessment report generation module, database management module and user management module
Described three-dimensional modeling module is used to adopt the UG module with parametric modeling function to set up exerciser volute three-dimensional model and testpieces three-dimensional model, wherein, the description of described parametric modeling for using several structural parameters to carry out to the geometry of volute, testpieces;
Volute three-dimensional model and testpieces three-dimensional model that described fluid dynamics MBM is used for generating according to the three-dimensional modeling module adopt CFD software (IcemCFD or TurboGrid) to carry out the foundation of hydrodinamical model, to generate volute hydrodinamical model and testpieces hydrodinamical model;
Described Knockdown block is used for the volute hydrodinamical model and the testpieces hydrodinamical model of the generation of convection cell Dynamic Modeling module to be assembled according to the actual physical state, can be used for the computation model of aeroperformance test with generation;
Described three-dimensional computations module is used for carrying out test simulation according to operating condition of test that is provided with and test working medium in conjunction with the computation model that is used for the aeroperformance test that described Knockdown block generates, and before calculating, in crucial cross section control point information is set, this information spinner will comprise the position and the monitoring parameter of control point, as pressure, temperature etc.;
Described post-processing module is used for carrying out reprocessing analysis according to test findings, with parameter distribution and the turbine three-dimensional character data that obtain each stream interface;
Described test report and assessment report generation module are used for summarizing according to test findings and test situation, and finish test report and test platform assessment report;
Described database management module is used for data are managed, test model, operating condition of test parameter, test findings data, family curve, parameter distribution figure to virtual test carry out storage administration, and provide retrieval for the user, inquiry and statistics and analysis and evaluation, wherein, described test model comprises volute three-dimensional model, testpieces three-dimensional model, volute hydrodinamical model and testpieces hydrodinamical model;
Described user management module is used for the management of user's fulfillment rights, so that the different rights personnel have different visits, revise authority virtual test charter, virtual test scheme, virtual test module.
2. a method that adopts small turbine engine turbine pneumatic performance dummy experiment system as claimed in claim 1 to test is characterized in that, may further comprise the steps:
Make volute to generate volute three-dimensional model and volute hydrodinamical model;
Make testpieces to generate testpieces three-dimensional model and testpieces hydrodinamical model;
Described volute hydrodinamical model and described testpieces hydrodinamical model are spliced the computation model that can be used for the aeroperformance test with generation, and carry out the full tunnel test according to operating condition of test that is provided with and test working medium.
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| CN102680226A (en) * | 2012-06-12 | 2012-09-19 | 中国科学院工程热物理研究所 | Method for evaluating performance of wing profile special for horizontal axis wind turbine |
| CN103499452A (en) * | 2013-10-21 | 2014-01-08 | 北京动力机械研究所 | Automatic interpretation method for engine testing data |
| CN103630363A (en) * | 2013-12-12 | 2014-03-12 | 北京动力机械研究所 | Simulation test method for high altitude ignition ability of turbine engine |
| CN105117570A (en) * | 2015-09-29 | 2015-12-02 | 北京动力机械研究所 | Modeling method of free jet spray pipes |
| CN109408934A (en) * | 2018-10-16 | 2019-03-01 | 北京动力机械研究所 | The quasi- Three-dimensional Flow Virtual Numerical Experiments method of turbogenerator complete machine |
| CN110020489A (en) * | 2019-04-15 | 2019-07-16 | 哈尔滨汽轮机厂有限责任公司 | The method for determining turbine blade erosion protection sheild geomery is analyzed based on CFD |
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| CN109408934B (en) * | 2018-10-16 | 2022-10-14 | 北京动力机械研究所 | Turbine engine whole machine quasi-three-dimensional flow virtual numerical test method |
| CN110020489A (en) * | 2019-04-15 | 2019-07-16 | 哈尔滨汽轮机厂有限责任公司 | The method for determining turbine blade erosion protection sheild geomery is analyzed based on CFD |
| CN110069848A (en) * | 2019-04-18 | 2019-07-30 | 西安交通大学 | A kind of turbine blade is pneumatic-dehumidifying-cooling test modeling method |
| CN110069848B (en) * | 2019-04-18 | 2020-10-27 | 西安交通大学 | Modeling method for turbine blade pneumatic-dehumidification-cooling test |
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