Method for calculating flow field of hydraulic torque converter

A hydraulic torque converter and flow field calculation technology, which is applied in calculation, instrument, special data processing applications, etc., to achieve the effect of shortening flow field calculation time, improving retrieval and storage efficiency, and strong calculation locality

Inactive Publication Date: 2016-11-09
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a calculation method for the flow field of a hydraulic torque converter, which uses the lattice LBM (Boltzmann) method, which has a simple calculation process, very flexible and convenient handling of complex boundary problems, and strong calculation locality. With natural parallelism, very detailed flow field formation process and local tiny flow details can be obtained

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  • Method for calculating flow field of hydraulic torque converter
  • Method for calculating flow field of hydraulic torque converter
  • Method for calculating flow field of hydraulic torque converter

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Embodiment Construction

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0037] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] The present invention applies the lattice Boltzmann (LBM) method in the calculation of the flow field, and the LBM is a new numerical simulation method of computational fluid dynamics. Starting from the viewpoints and theories of molecular kinetics and statistical mechanics, it establishes the motion model of microscopic particles, and uses two simple processes of flow and collision to simulate the macroscopic characteristics of flow. The LBM method has been successfully applied to areas where traditional computational fluid dynamics is difficult to perform, such as porous media, biological fluid flow, and particle su...

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Abstract

The invention discloses a method for calculating a flow field of a hydraulic torque converter. The method comprises the following steps of establishing a geometric model required for calculating the flow field of the hydraulic torque converter; reading the geometric model for calculating the flow field of the hydraulic torque converter and parameter files; specifying a boundary condition type of flow field calculation; performing unit conversion; selecting a collision algorithm; determining a lattice model for flow field calculation; defining a turbulence model for flow field calculation; initializing the boundary condition and the flow field; calculating the flow field; and outputting a calculation result. The method has the advantages that the calculation time is shortened and the calculation efficiency is improved; and the flow field calculation efficiency is enhanced while the calculation stability is ensured.

Description

technical field [0001] The invention relates to a method for calculating the flow field of a hydraulic torque converter. Background technique [0002] The hydraulic torque converter is a device used to transmit power between the engine and the transmission in the hydromechanical automatic transmission and some continuously variable transmissions. A vehicle equipped with a torque converter has the advantages of strong adaptability, high low-speed driving performance and good stability, and improves the ride comfort and service life of the vehicle. Therefore, the research on the torque converter is carried out Development has realistic and long-term significance. [0003] In the limited space of the torque converter, the fluid flow needs to be converted between axial flow, centrifugal flow and centripetal flow. In addition, the hydraulic torque converter has a wide working range and often works in off-design conditions, where the liquid flow has a large impact angle relative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367G06F2111/10
Inventor 吴光强陈洁吴虎威陈达观陈祥邹玉国张春祖王立军
Owner TONGJI UNIV
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