The CFD Application for Efficient Designing in the Automotive Engineering

Abstract

Recently, many CFD analyses which assist mechanical designing have been carried out in every aspects of automotive engineering. While many CFD tools have been developed for easies of use and advances in CFD analyses tools continue, instances of effective design using these tools are not well discussed in the literature. This paper discusses a CFD analysis system, SC/Tetra, is equipped with an automatic hybrid mesh generator, a high-speed flow solver and a state of the art postprocessor. In SC/Tetra, the flow solver is built on a node-based finite-volume discretization method to achieve both high-speed computation and small memory consumption. The advancing-front method is applied to the automatic mesh generator. These features of efficient computation are desired to achieve shorter design times. Discussions are made after performing sample computations of a torque converter for an automobile, which presents difficulties for efficient CFD analysis. The difficulties are based on the numerical modeling, the mesh generation and retaining the accuracy of the computational result. SC/Tetra is optimized for effective computation and copes with these difficulties with adequate strategies. CFD tools will be able to give more parametric data to accelerate product design processes and to improve products.

Evaluating Airfoil Mesh Quality with Transformer

“…Computational fluid dynamics (CFD) has been continuously expanded from the initial field of aerospace to [1] architectural design [2], energy engineering [3], automotive engineering [4], food engineering [5], and the agricultural environment [6]. The complete CFD process is divided into three steps [7]: (1) the generation of the mesh; (2) the determination of the CFD control equations for the solution, and the numerical calculation method; and (3) the calculation and visualization of some parameters such as the velocity field, pressure field, and temperature field.…”

Pressure Measurements Inside Multiple Cavities of a Torque Converter and CFD Correlation

“…respectively. Errors below -9% and-10% for impeller and turbine torques were reported by Watanabe N. while studying a torque converter with CFD solver parameter improvements [50].…”