CFD ANALYSIS OF ORIFICE CHAMBER
The case study involves a comprehensive Computational Fluid Dynamics (CFD) analysis conducted on an orifice chamber for a specific application. The geometry, provided by the client and processed by Jilbee Engineering, was utilized for a single-phase steady-state analysis, considering heat loss due to convection and radiation. The primary focus of the study was to determine the pressure drop, velocity distribution, and temperature distribution within the orifice chamber.
Objective: Assess pressure drop, velocity distribution, and temperature distribution in the orifice chamber.
Methodology
The CFD analysis was carried out in several stages, including preparing the CAD geometry, meshing, solution setup with convergence monitoring, and post-processing for reporting. The design information was based on specific documents, and the 3D model was prepared using ANSYS DesignModeler. The finite volume model (CFD mesh) employed a combination of hexahedral and tetrahedral elements, with relevant material properties, boundary conditions, and solution options considered.
Solution Option
The flow simulation was run as a steady-state analysis, utilizing the Reynolds-Averaged Navier-Stokes (RANS) equations and the Realizable k-epsilon turbulence model. The solution was pursued until stable convergence of the quantities of interest was achieved.
Results and Discussion
The case study discusses three different flow conditions – normal flow, minimum flow, and maximum flow. Each section presents velocity streamlines, velocity, temperature, and pressure plots at the middle plane for the respective flow case. The key findings, such as inlet pressure, maximum velocity, and average temperature at specified outlets, are summarized for each case.
Conclusion
The CFD analyses provided valuable insights into the flow inside the orifice chamber under different conditions. The conclusions highlight the significance of the study’s findings, emphasizing the varied outputs observed during normal, minimum, and maximum flow conditions.
