Basement Ventilation

Problem Definition:

To decide the fan position for air circulation in the basement of building.

Description:

Building regulations require the provision of ventilation to all basements (heated or unheated) to adequately control moisture vapour, be it generated internally or brought through from the structure. Cross ventilation or passive stack ventilation are the most effective forms of natural ventilation although continuous mechanical ventilation may be required depending upon proposed use and internal arrangement of parking space. A Computational Fluid Dynamics (CFD) analysis is used to prove and refine the design and deciding the fan locations. Fans are re-orientated, or in some cases, added or removed based on the CFD results.

Rubber Dam Design

Problem Definition:

To decide the rubber thickness, material and height of rubber dam to divert water for irrigation, flood control, water retention for aquifer recharge.

Description:

Inflatable rubber dams are cylindrical rubber fabrics placed across channels, streams to raise the upstream water level when inflated. The membrane is a multi-layer fabric made of synthetic fibre and rubberised on one or both sides. The fabric is quite flexible and yet exhibits good wear-resistance characteristics. A layer of stainless steel mesh or ceramic chips can be embedded in the surface layer to reduce or prevent vandal damage. The inflatable flexible membrane dams (IFMD, or rubber dams) were designed and analysed using Computational Fluid Dynamics (CFD). The proposed rubber dam has been installed in Maharashtra State, India in river stream. Rubber dam is bolted into a concrete foundation. The proposed rubber dam has been used to divert water for irrigation, flood control, water retention for aquifer recharge.

Flow through Valve

Problem Definition:

To decide the optimum wall thickness and identify the critical area of failure of valve.

Description:

Control valves are normally fitted with actuators and positioners. Hydraulically-actuated valves are widely used for control purposes in many industries. The hydraulic actuators respond to changes of pressure or flow and will open/close the valve. The back pressure generated on the valve body are analysed using Computational Fluid Dynamics (CFD). The wall thickness is designed by analysing the critical area of failure.

Vertical Axis Wind turbine

Problem Definition:

To decide the optimum wall thickness of blade and allied geometrical constraints for maximum energy generation at low wind speeds.

Description:

The Vertical Axis Wind Turbine (VAWT) is the most popular of the turbines that people are adding to make their home a source of renewable energy. While it is not as commonly used as the Horizontal Axis Wind Turbine, they are great for placement at residential locations and more. Computational Fluid Dynamics (CFD) is used to analyse the induced wind forces on the blades and thus resulting into the torque at the bottom of vertical axis.