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Program is somehow an inter-stage between simple calculations on the basis of empirical relations and modern simulation methods on the basis of CFD.

Soultanzadeh, Numerical modeling of the air permeability of knitted fabric using computational fluid dynamics (CFD) method, Fibers and Polymers. 18 (2017) 1804-1809
Gutauskas, Simulation and application of the behaviour of a textile fabric while pulling it through a round hole, Fibres and Textiles in Eastern Europe. 11 (2003) 37-41

Transient information The Monte Carlo simulation is used in the PFM assessment, and the total frequency of fast fracture is determined[7]: (2) where, is the conditional probabilities of fast fracture for the th representative transient, and is the frequency of the th representative transient.
And computational Fuild Dyanamics (CFD) analysis can be used to calculate more realistic HTCs. 5) Basic data collection for the PFM analysis, such as crack size, direction and probabilistic distribution, and the inspection capability can be used as the intial defect size.

Hieu, Reverse engineering based on numerical simulation of ship propeller on the Suzuki 9.9 hp outboard motor, Journal of Transportation Science and Technology - Ho Chi Minh City University of Transport 26: 3 – 7, 2017
Hieu, Turbulence modeling in CFD for performance of the Wageningen B-Series propeller, presented at International Symposium on Computational Design and Engineering, HCM City, Viet Nam, 2017

Computer simulations (CFD), wind tunnel tests with models and site tests with full size mock-up of the façade can be used.

Then, the GAHE-PCM simulation was verified by contrasting its outcomes with the data from the simulation developed by Zhou et al. [4] in Chongqing, China.
Building upon the GAHE numerical model of Brum et al. [13], used in several works in the literature [2, 3, 14], in the current research a numerical simulation of GAHE-PCM was constructed within the ANSYS Fluent program, with the simulation region illustrated in Fig. 2.
For the initial condition, the simulation region was established at the mean annual ground temperature of 18.7°C.
Simulation duration for the current study was 2 years.
Wilcox, Turbulence Modeling For CFD, third ed., DCW Industries, California, 2006

In order to demonstrate this, the ATR was analyzed in CFD software to demonstrate the behavior of gases inside the engine.
Simulations were done for both air breathing mode and reentry mode of ATR .
In this mode, the simulation starts after the compressor where boundary conditions are calculated manually.
a) Velocity Vectors The velocity should be more at the exit to produce thrust (here negative thrust) it is shown from simulation that velocity is very high at the exit and this mode will produce negative thrust during reentry shown in Fig.9(d).

Major issues regarding to the successful adhesion of particles and corresponding interaction with substrates and existing deposits are discussed, in terms of numerical simulation and experimental observation.
Fig. 8 CFD data, showing contours of density, for the bow shock at different standoff distances when using the helium nozzle at 2.0 MPa and 20 °C. [32] Pattison et al [32] studied the behavior of bow shock by using computational fluid dynamics (CFD), particle image velocimetry and schlieren imaging.
It can be seen from the CFD images (Fig. 8) that the size of the bow shock decreases both in terms of its height and width as the standoff distance (SoD) increases.
Based on their contributions, it can be summarized into two aspects: simulation of single particle impact and simulation of multi-particles impact.
Therefore, numerical simulation was carried out by several research groups [19, 20, 40, 64] in terms of particle velocity, strain, strain rate and temperature rise at contact interfaces during impact.

The numerical simulations are presented and discussed for the range of these conditions: Re = 10 to 100 and Pr = 0.71.
(11) Numerical Procedure The computational simulations are investigated numerically by using the package CFD called ANSYS-CFX which is developed by AEA Technology, UK; this code simulated the steady state 2D flow over a row of three square cylinders under the presence of thermal buoyancy.
(a) (b) Fig. 2: A representative grid distribution around a row of cylinders; (a) typical grid used for simulation and (b) a closer view around the middle cylinder.
Peng, Simulation of Non-Newtonian (power-law) fluid flow past a row of square cylinders , Sci.
Uthayakumar, Numerical Simulation of Steady Flow and Forced Convection Heat Transfer from Two Offset Square Cylinders Placed in a Channel, Arab J Sci Eng, xx(2016) xx–xx

Numerical models and simulation approach Model geometry and mesh.
For the all scenarios analyzed in this study, the same grid size of 5μm is used to mesh the models for the CFD simulations.
The simulations show that the gas phase reaction can not be ignored inside a micro-catalyst reactor for most conditions.