Fluid dynamics, analysis

All these processes are, in common, liquid-gas mass-transfer operations and thus require similar treatment from the aspects of phase equilibrium and kinetics of mass transfer. The fluid-dynamic analysis ofthe eqmpment utihzed for the transfer also is similar for many types of liquid-gas process systems. 

In this work, the MeOH kinetic model of Lee et al. [9] is adopted for the micro-channel fluid dynamics analysis. Pressure and concentration distributions are investigated and represented to provide the physico-chemical insight on the transport phenomena in the microscale flow chamber. The mass, momentum, and species equations were employed with kinetic equations that describe the chemical reaction characteristics to solve flow-field, methanol conversion rate, and species concentration variations along the micro-reformer channel. 

Silva, E. M. V., Ferreira, M. C., and Freire, J. T., Mean Voidage Measurements and Fluid Dynamics Analysis in a Circulating Fluidized Bed with a Spouted Bed Type Solids F eeding System, Proc. of2nd European Thermal-Sciences and 14th UIT National Heat Transfer Conference, Rome (1996)... 

Longitudinal dispersion in the continuous phase (the liquid phase for a bubble column, and the emulsion phase for a fluidized catalyst bed) is closely related to flow properties of the equipment. Here, we wish to describe the longitudinal dispersion phenomena in terms of the fluid-dynamic properties of the equipment. The prime purpose is to test whether the fluid-dynamic analysis developed earlier is sound, but lon-... 

Figure 12-3 A graphical display of the meaning of the symbols used in the fluid dynamic analysis of a single-pass sieve tray with crossflow.

Fig. 1 0.5 Mesh definition for computational fluid dynamics analysis of friction stir welding, (a) Subdivision into translating and...

Wang F.J. 2004. Computational fluid dynamics analysis. Beijing Tsinghua university press. 

Kronberger, B. and Lyngfelt, A. (2005) Design and fluid dynamic analysis of a bench-scale combustion system with CO2 separation-chemical-looping combustion. Industrial Engineering Chemistry Research, 44,546-556. 

Neve RS. (1993) Computational fluid dynamics analysis of diffuser performance in gas powered jet pumps. Int. J. Heat Fluid flow, 14(4) 401 07. 

M.W. Weber, R. Shandas, Computational fluid dynamics analysis of microbubble formation in microfluidic flow-focusing devices, Micrcfluidics Nanojluidics, 2007, 3, 195-206. 

Coroneo M, Montante G, Paghanti A Numerical and experimental fluid-dynamic analysis to improve the mass transfer performances of Pd—Ag membrane modules for hydrogen purification, Ind Eng Chem Res 49 9300-9309, 2010. 

In a previous paper [6], we proposed a method for modeling the availability of middle/low pressure gas networks, which consists in an interleaved execution of i) a quasi-static fluid-dynamic analysis of the network and ) a stochastic model of the failure management procedure. The latter uses non-Markovian temporal parameters, thus overcoming the limits of memoryless and imbounded support of exponential distributions. As a distinctive trait, fluid-dynamic calculations are decoupled from the non-Markovian stochastic analysis and the complexity of stochastic analysis is insensitive to topology and size of the gas network. 

For failures of pipes belonging to the ring, the pressure regulation time is characterized by assuming a pressure increase rate of 2 mbar/h and using the results of the fluid-dynamic analysis which provides the minimum pressure increase AP to be actuated at the supply node so that all online nodes are served. 

Prom the values in Table 2, global metrics can be derived. Table 3 shows the reward rates as calculated by aggregating the results of the fluid-dynamic analysis in terms of nodes not served and demand not served. 

There are various analytical methods available to the designer using a CAD system. FEA and static and dynamic analysis are all commonly performed analytical methods available in CAD. FEA is a computer numerical analysis program used to solve the complex problems in many engineering and scientific fields, such as structural analysis (stress, deflection, vibration), thermal analysis (steady state and transient), and fluid dynamics analysis (laminar and turbulent flow). 

Wang, C., Xiao, Y., Zhou, J., Zhang, D., Qiu, S., Su, G., Cai, X., Wang, N Guo, W 2014a. Computational fluid dynamics analysis of a fluoride salt—cooled pebble-bed test reactor. Nuclear Science and Engineering 178, 86—102. 

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