Fluid-solid coupling computing method based on fixed grid technology
A technology of fluid-structure coupling and calculation method, applied in the direction of calculation, special data processing application, instrument, etc., can solve the problems of complex grid quality control process and large boundary layer velocity distribution error.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] Embodiment 1: as Figure 1-3 As shown, a fluid-solid coupling calculation method based on fixed grid technology, the specific steps of the method are as follows:
[0046] Step1. Call the mesh division module and use two sets of grids: flow field area and solid area; the flow field area is discretized by Cartesian grid under the Euler description, and the solid area is described by Lagrangian using limited fit meta-grid discretization;
[0047] Step2. Call the flow field CFD (computational fluid dynamics) calculation module, and use the submerged boundary method based on the step-by-step projection to solve the flow control equation of the incompressible viscous Newtonian fluid, update the flow field state variables, and obtain the fluid acting on the solid boundary node at the same time force on
[0048] Step3. Call the solid CSD (computational solid dynamics) calculation module, use the finite element method, solve the solid dynamics control equation, update the soli...
Embodiment 2
[0079] Embodiment 2: as Figure 1-3 As shown, a fluid-solid coupling calculation method based on fixed grid technology, the specific steps of the method are as follows:
[0080] A stationary rigid square column is submerged in an incompressible flow field, the flow at the left inlet is assumed to be a uniform flow field, and the velocity is v x =v 0 ,v y =0. An elastic cantilever beam (solid density ρ s =100Kg / m 3 , elastic modulus E = 25Gpa, Poisson's ratio ν = 0.35). At rest, the beam axis is parallel to the far-field flow direction, and the inlet velocity v 0 =51.3cm / s, Reynolds number Re=ρ f Dv 0 / μ f =333, where D=1cm is the side length of the rigid square column, and the height of the flexible cantilever beam is 0.06D.
[0081] S1: Meshing
[0082] The flow field area (including fluid and solid areas) is divided into Cartesian grids under the Euler description. The grid is a uniform quadrilateral grid with a grid spacing of h=0.01D, and the unit coordinate inf...
PUM
Property | Measurement | Unit |
---|---|---|
Elastic modulus | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com