Mechanical / CAE engineer. Simulation and calculation projects end to end — model build, validation, and a report your client, checker or vendor can sign off on. PIPELINE & GAS HYDRAULICS Steady-state models over surveyed route geometry (Peng-Robinson / Papay Z, Churchill and Colebrook-White friction, elevation head, thermal). Capacity verification and envelopes, looping and diameter alternatives, compressor station siting and duty, gas-turbine driver selection with site derating and sparing, fuel gas, API RP 14E erosional checks, MAOP limits, capex screening. Validated against HYSYS / TGNet references and hand calculation. Lines 460-1,700 km, 20" to 42", 5 to 30 MMSm3/d. CFD (ANSYS Fluent) Multiphase, DPM, evaporation and spray (diesel, KH-RT breakup) validated to published cases; conjugate heat transfer; internal flows; k-e, k-w SST, y+ control, mesh independence. FEA (ANSYS Mechanical / APDL, Abaqus, COMSOL) Static, dynamic, modal, thermal-structural. Structural fire: ISO 834, section factor, critical temperature, EN 1993-1-2 vs FEA. Fatigue, low- and high-cycle, concrete damaged plasticity, textile-reinforced concrete. Nonlinear process simulation: Norton creep, superplastic forming, parameter calibration to client test data, Taguchi DOE. FSI in COMSOL with orthotropic materials. CODES EN 1993-1-1 / -1-2 / -1-8, EN 13001, AS 1418.1, SS 559, API 5L, API RP 14E, ASHRAE. Elastic and plastic limit-state checks, connections, welds, stability. CAD Parametric modelling, assemblies, sheet metal, GD&T drawings, BOM. Casting and mould design, filling and solidification, injection flow. Mid-surfacing and cleanup for shell FEA, scripted batch workflows (Space Claim API) on large assemblies. HVAC Sensible and latent load calculation, tonnage and equipment selection, duct sizing (equal friction, velocity, static regains), chilled water and refrigerant pipe sizing, ESP, fan and pump selection, psychometrics, ASHRAE loads, comfort CFD. I also run an HVAC and refrigeration company — site experience, not textbook. AUTOMATION MATLAB packages delivered with README and reproducible from the prompt, APDL, Python, Space Claim API, Node.js report generation. DELIVERABLES Complete setup (case, mesh, models, BCs). Revision-controlled reports with document control, stated design basis, assumptions and open items, appendices carrying model output, worked hand calculations and source code. CAD models, drawings, A3 calculation layouts. HVAC load sheets and selection. Plain-English reading of what the results mean and where they are weak. HOW I WORK Ambiguous data becomes written clarification questions before I model anything — I don't guess and hand you a number you can't defend. Assumptions stated, not buried. If a result looks wrong, I say so and re-check it, including my own earlier revisions. Send me the scope and the data you have.