Week 11: Hot Aisle Cold Aisle Containment for Data Center

Hot Aisle Cold Aisle Containment for Data Center

Aim:

To Clean up the geometry and setup the case for the DATA CENTER and make necessary calculations to setup the case as explained in the videos.

To Show the flow physics and explain the following terms,

• Plenum region
• CRAC units
• Server room

Geometry:

The geometry was imported into Converge,CAD clean up and diagnosis was done.

Setup:

• Application: General Flow
• Solver: Transient solver
• Material: Air
• Species: O2 and N2
• Solid material: Aluminium
• Simulation mode: Full hydrodynamic
• Simulation time parameters:
  Start time:0 sec
  End time:0.075 sec
• Super cycling is enabled
• Region & Initialization:
  Created a region for initializing the setup
• Boundary conditions
  Plennum walls -Wall motion type- Stationary
  Surface movement- FIXED
  Temperature- 285 K

• Server walls: Wall motion type- Stationary
  Surface movement- FIXED
  Temperature- 300 K

• Inlet 1 (BOUNDARY ID-3): Pressure- Zero gradient
  Velocity- 0.0029 kg/s
  Temperature- 285 K

• Inlet 2 (BOUNDARY ID-4): Pressure- Zero gradient
  Velocity- 0.0029 kg/s
  Temperature- 300 K

• Outlet (BOUNDARYID-5): Pressure- 101325 Pa
  Velocity- Zero gradient
  Temperature- 300 K

• Cabinet: Wall motion type- Stationary
  Forward side (server region) - Velocity- Law of wall
  Temperature- Law of wall
  Reverse side (solid) – Velocity- No slip
  Temperature- Specified Value

• Events:

  Region A	Region B	Event
  Plenum region	Server region	OPEN

• Grid Control:

  • Element size:dx = 0.1m, dy = 0.1m & dz = 0.1m
• Fixed embedding is enabled
• Turbulence Model - K epsilon
  
  

Mesh:

Results:

Mass flow rate:

Temperature :

Velocity:

Total cell:

Pressure plot:

Temperature contour:

Pressure contour:

Density contour:

Velocity contour:

Conclusion:

The simulation process for hot aisle and cold aisle containment for data centre is done.