TPU Building - Corner Cut#

1. Project Description#

The objective of this project is to reproduce the wind pressure properties over the Tokyo Polytechnic University (TPU) Building - Corner Cut, as measured in wind tunnel by [1]. The building is at resolution level “lvl5” of the digital wind tunnel. One convective time scale is defined as \(CTS = B / U_H\).

Source of target results:

List of analysed cases

Wind direction

15°

30°

45°

TPU Building - Corner Cut geometry

Ilustration of the geometry.#

TPU Building - Corner Cut coordinates

Ilustration of the probes location and wind directions.#

2. Simulation Setup#

TPU Building - Corner Cut grid

Ilustration of the computational domain.#

Simulation parameters (same for all cases)

\(\Delta x / B\) (spatial resolution)

1.00E-2

\(\Delta t / CTS\) (temporal resolution)

7.08E-4

\(\text{exports} / CTS\) (pressure acquisition frequency)

1.13E-1

\(T / CTS\) (statistical sample size)

7.93E+2

\(Re_B = U_H B / \nu\)

2.04E+5

Computational performance (NVIDIA RTX A5500)

Case

15°

30°

45°

Node count (million)

102

103

105

105

Allocated memory (Gb)

16

16

16

16

Elapsed time (h)

27

26

30

30

3. Inflow#

TPU Building - Corner Cut
TPU Building - Corner Cut

4. Results: Local Statistics#

Note

General comments:

  • Experimental samples of the same size (\(T / CTS\)) of the numerical samples have been selected for comparison.

  • The peak pressure coefficients have been evaluated over moving averages of the original signals, with window size described in the plot legends.

Mean and Peak Pressures#

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TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut

RMS Pressures#

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TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut

Skewness and Kurtosis#

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TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut

Pressure Spectrum#

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TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut
TPU Building - Corner Cut

Changelog#

Execution Notes

01 May 2024

  • Uploaded point comparisons, simulations executed with Nassu release v1.5.4.