Description This project analyzes steady ventilation airflow in a storage-container room with two internal walls using ANSYS Fluent. The 3D geometry is built in DesignModeler. Meshing is done in ANSYS Meshing with a structured grid of 115,635 elements. Methodology The room measures 0.5 × 0.5 × 1 m and contains two walls aligned across the flow path, representing baffles in a storage chamber. Air enters at 5 m/s and, due to the geometry, accelerates to a peak of ≈20 m/s after passing the second wall. Turbulence is modeled with the standard k–ε model, and the energy equation is solved to capture temperature distribution. Results Post-processing provides 2D contours of pressure, velocity, and streamlines. The inlet velocity of 5 m/s increases to about 20 m/s downstream of the second wall. The normal force on the walls totals 15.8526 N, and the gap between the two walls exhibits strong turbulence, with turbulent kinetic energy reaching ~2 J/kg.

Description This project models heat transfer from a wall-mounted radiator inside a room using ANSYS Fluent. The heater, attached to one sidewall, acts as a heat source with a constant heat flux of 1886.792 W/m². The sidewalls and ceiling are 0.2 m thick wood and exchange heat with the outdoors via convection (ambient 280 K, h = 10 W/m²·K). The study focuses on natural convection and buoyancy-driven flow inside the room, so gravity is included. The 3D geometry is created in SpaceClaim. Meshing is performed in ANSYS Meshing with a structured grid totaling 87,865 elements. Methodology The energy model is enabled to resolve conjugate heat transfer between the heater and room air, capturing buoyancy-induced circulation. Conclusion Post-processing yields 2D and 3D contours of velocity, temperature, and pressure, along with pathlines and velocity vectors. Results show the radiator elevates room air temperature, with the strongest heating and velocity increases near the walls, especially in the vicinity of the heater.

Description This project simulates airflow within a building’s double-skin façade (DSF) using ANSYS Fluent. In a DSF, solar-heated air rises due to buoyancy, providing passive heating and aiding ventilation/cooling inside the building. The 3D geometry (DesignModeler) is a rectangular cavity measuring 0.6 × 3.2 × 5 m, composed of a duct for airflow and a glazed section that absorbs solar heat. Openings include a 0.2 m rectangular inlet at the bottom of the glass wall and a 0.2 m outlet near the top. Meshing (ANSYS Meshing) yields 490,725 elements. Methodology The study evaluates buoyancy-driven circulation in the DSF cavity. The glass section is modeled with a volumetric heat generation of 6940 W/m³ to represent solar gain. Building walls are brick and subject to convection to the interior: T = 300 K, h = 23 W/m²·K (free convection). Supply air enters the façade at 304.55 K and atmospheric pressure. To capture buoyancy, air density follows the ideal gas law, and gravity = 9.81 m/s² is applied. Conclusion Post-processing provides 2D/3D pressure, velocity, and temperature contours, plus 2D/3D velocity vectors. The vectors show an upward flow in the cavity, confirming buoyancy-driven ventilation within the double-skin façade.

Indoor Climate Analysis: Room Heating and Natural Ventilation CFD Study Using ANSYS Fluent Project Overview This computational study analyzes indoor airflow dynamics and thermal behavior within a heated room utilizing natural single-sided ventilation through ANSYS Fluent simulation. The investigation features an aluminum heating radiator producing 23,469 W/m³ of thermal output as the primary heat source. A side-mounted window serves as the natural ventilation outlet, operating under ambient atmospheric pressure with backflow temperatures matching interior conditions. The research aims to characterize the complex airflow patterns and thermal distribution within this naturally ventilated heated space. Model Geometry and Computational Grid The three-dimensional room model was constructed using Design Modeler, featuring interior dimensions of 2.15m × 2.16m × 3.32m. A rectangular heating unit is strategically positioned along the base of one sidewall to represent typical residential heating configurations. The computational grid was developed using ANSYS Meshing with an unstructured mesh topology comprising 987,087 computational cells, providing sufficient resolution for accurate flow and thermal boundary layer capture. CFD Analysis Setup The numerical simulation employs the following modeling framework: Core Assumptions: Pressure-based flow solver Combined fluid dynamics and thermal analysis Steady-state operating conditions Gravitational effects included (9.81 m/s²) Turbulence Framework: Realizable k-epsilon turbulence model Standard wall function approach Boundary Specifications: Window: Pressure outlet at atmospheric conditions Room surfaces: Stationary walls with zero heat flux Radiator: Volumetric heat generation source Numerical Approach: SIMPLE algorithm for pressure-velocity coupling High-order discretization schemes for improved accuracy Standard initialization at atmospheric conditions (101,325 Pa, 300 K) Simulation Results and Visualization The computational analysis generates comprehensive flow and thermal field data, including detailed pressure, temperature, and velocity distributions in both 2D and 3D formats. Velocity vector fields provide insight into circulation patterns. Cross-sectional analysis is conducted on XY and YZ planes, with multiple YZ sections examined to fully characterize the three-dimensional nature of the heated room’s airflow and thermal behavior.

The geometry is designed by SpaceClaim and the mesh is generated by ANSYS Meshing.