Stochastic smoothed profile method for modeling random roughness in flow problems

We present an efficient computational method to model fluid flow in the presence of random wall roughness. A random flow domain is represented by a stochastic indicator function having a smoothed profile perpendicular to roughness, and the random domain is discretized with a fixed non-conformal grid...

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Veröffentlicht in:	Computer methods in applied mechanics and engineering 2013-08, Vol.263, p.99-112
Hauptverfasser:	Zayernouri, Mohsen, Park, Sang-Woo, Tartakovsky, Daniel M., Karniadakis, George Em
Format:	Artikel
Sprache:	eng
Schlagworte:	Computer simulation Cylinders Incompressible flows Karhunen–Loève expansion Mathematical analysis Mathematical models Multi-element PCM Navier-Stokes equations Roughness Stochastic mapping technique Stochasticity Wall roughness Walls
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