发明名称 Generating inviscid and viscous fluid flow simulations over a surface using a quasi-simultaneous technique
摘要 A fluid-flow simulation over a computer-generated surface is generated using a quasi-simultaneous technique. The simulation includes a fluid-flow mesh of inviscid and boundary-layer fluid cells. An initial fluid property for an inviscid fluid cell is determined using an inviscid fluid simulation that does not simulate fluid viscous effects. An initial boundary-layer fluid property a boundary-layer fluid cell is determined using the initial fluid property and a viscous fluid simulation that simulates fluid viscous effects. An updated boundary-layer fluid property is determined for the boundary-layer fluid cell using the initial fluid property, initial boundary-layer fluid property, and an interaction law. The interaction law approximates the inviscid fluid simulation using a matrix of aerodynamic influence coefficients computed using a two-dimensional surface panel technique and a fluid-property vector. An updated fluid property is determined for the inviscid fluid cell using the updated boundary-layer fluid property.
申请公布号 US8892408(B2) 申请公布日期 2014.11.18
申请号 US201113070384 申请日期 2011.03.23
申请人 Aerion Corporation 发明人 Sturdza Peter;Martins-Rivas Herve;Suzuki Yoshifumi
分类号 G06F7/60;G06F17/10;G06F17/50 主分类号 G06F7/60
代理机构 Morrison & Foerster LLP 代理人 Morrison & Foerster LLP
主权项 1. A computer-implemented method of generating a fluid-flow simulation over a computer-generated surface using one or more processors, the simulation including an inviscid fluid-flow mesh comprised of a plurality of inviscid fluid cells and a viscous fluid-flow mesh comprised of a plurality of boundary-layer fluid cells, at least some of the boundary-layer fluid cells being on or adjacent to the computer-generated surface, the method comprising: determining, using the one or more processors, an initial fluid property, for at least one inviscid fluid cell using an inviscid fluid simulation that does not simulate fluid viscous effects; determining, using the one or more processors, an initial boundary-layer fluid property for at least one of the boundary-layer fluid cells using the initial fluid property and a viscous fluid simulation that simulates fluid viscous effects, wherein the at least one inviscid fluid cell is located in relation to the at least one boundary-layer fluid cell such that an updated boundary-layer fluid property for the at least one boundary-layer fluid cell is influenced by the at least one inviscid fluid cell; determining, using the one or more processors, the updated boundary-layer fluid property for the at least one boundary-layer fluid cell using the initial fluid property, initial boundary-layer fluid property, and an interaction law, wherein the interaction law approximates the inviscid fluid simulation using a matrix of aerodynamic influence coefficients computed using a two-dimensional surface panel technique and a fluid-property vector; determining, using the one or more processors, an updated fluid property for the at least one inviscid fluid cell using the updated boundary-layer fluid property.
地址 Reno NV US