CFD Modeling of a Mixing Tee – Part 1: Model Validation

by Dave Dewees, Zumao Chen and L. Magnus Gustafsson This 2-part blog deals with CFD modeling of a mixing tee that is often found in industry. Traditional simulation is validated against experiment, as well as a new commercially available method that offers the possibility of substantial solution time reduction.  In fact, the new method is shown […]

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CFD Modeling of a Mixing Tee – Part 2: Predictions of Temperature Fluctuations

by Dave Dewees, Zumao Chen and L. Magnus Gustafsson Miss Part 1? Click Here This is the second part of a 2-part blog.  In Part 1, the stress-blended eddy simulation (SBES) and large eddy simulation (LES) approaches for simulating turbulence have been validated against test data obtained from a mixing tee. In this part, the […]

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CFD Analysis with Scale Model Verification – A Proven Cost-Effective Approach

Contributing Authors – Dave Dewees (Becht) and Dr. Keith Kirkpatrick (McHale Performance)  Reducing HRSG & Stack Pressure Drop to Improve Profitability Many operating Simple and Combined Cycle HRSG (Heat Recovery Steam Generator) ducts and stack exhaust system designs can be optimized to reduce pressure drop, improve combustion turbine backpressure, improve performance and increase revenue.  CFD analysis […]

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Computational Fluid Dynamics (CFD) Confirms Cause of Deaerator Cracking

CFD was used to confirm that poor design of the steam inlet nozzle was the main contributor to deaerator head to shell weld cracking, and confirmed proposed design improvements.  This recent Becht project illustrates one of the causes of deaerator cracking. A through-wall crack had been found at the head-to-shell junction at the steam inlet […]

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