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COMSOL 3D Goaf (Mined-Out Area) Model – 0/3/6/9 MPa Axial Stress + Free-Phase CO₂ Storage Need a COMSOL engineer to build a runnable 3D goaf (mined-out area) model and run 4 axial stress cases: 0 MPa (baseline), 3 MPa, 6 MPa, 9 MPa. Deliver: (1) runnable COMSOL model file, (2) comparison results showing goaf fracture change (effective/equivalent method acceptable), (3) computed free-phase CO₂ storage amount for each case + brief notes on assumptions/parameters. ———————— Proposal requirements (please answer) What similar COMSOL projects have you done (porous media / gas flow / geomechanics)? ———————— COMSOL Multiphysics / Multiphysics Simulation Engineer Porous Media / Gas Flow / Geomech...

I have a gas-liquid separator whose internal geometry needs to be verified before fabrication. The task is a complete CFD study of multiphase flow through the vessel, capturing the interaction between gas and liquid phases. My main concerns are flow distribution across the internals, overall pressure drop, and the resulting phase-separation efficiency, so the model must resolve these three metrics quantitatively. A CAD file of the current layout, design operating conditions, and fluid properties will be supplied at project start. The simulation should be run at the specified throughput, using an appropriate multiphase model (VOF, Euler-Euler, or similar) in Fluent, CFX, OpenFOAM, or another recognised solver, with mesh independence demonstrated. Please include transient behaviour if it ma...

I’m refining a cross-flow fan-wing UAV concept and need a complete picture of how it will behave in the air and how the structure will cope with the resulting loads. On the aerodynamic side, I want accurate lift and drag coefficients across the flight envelope, clear visualisation of flow patterns and vortex behaviour around the fan-augmented wing, and a detailed pressure distribution map that I can feed back into the structural model. CFD in ANSYS Fluent, OpenFOAM or an equivalent solver is fine as long as mesh independence is demonstrated and transitional flow around the fan is captured. For structural integrity, my main focus is the wing and fan structure plus the control surfaces and their attachments. I’d like an FEA model (Abaqus, ANSYS Mechanical, or similar) that impor...