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{include: FLUENT Google Analytics} {include: Turbulent Jet - Panel} h1. Turbulent Jet Setup and Solution Use the same case and data files as you downloaded in the Laminar setup for the geometry and mesh. Now, set up the k-ε model for turbulence. In Solution Setup-Models, double click the previous "Viscous-Laminar" option to open the dialogue. Select the "k-epsilon (2eqn)" model for turbulence. Leave the model constants the same as defined in the dialogue below; these values have been refined to constraints of the model and are typically not varied. The following empirical formulas are useful in defining this model. I is the turbulent intensity, {latex} \large $$d_H$$ {latex} is the hydraulic diameter, and d is the jet diameter. \\ {latex} \large $$ {I} = {0.16Re^{-1/8}} $$ {latex}, {latex} \large $$ {d_H} = {d} $$ {latex}, {latex} \large $$ {l} = {0.07d} $$ {latex} \\ {latex}\large $$ {\epsilon} = {C_\mu^{3/4}k^{3/2} \over l} $$ {latex}, {latex} \large $$ {k} = {3 \over 2 (UI)^2} $$ {latex} \\ [Go to Step 5: Turbulent Jet Results|Turbulent Jet - Turbulent Results] [Go to all FLUENT Learning Modules|SIMULATION:FLUENT Learning Modules] |
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