Using proper orthogonal decomposition to solve heat transfer process in a flat tube bank fin heat exchanger
Journal Title: Advances in Geo-Energy Research - Year 2017, Vol 1, Issue 3
Abstract
Proper orthogonal decomposition (POD) reduced-order model can save computing time by reducing the dimension of physical problems and reconstructing physical fields. It is especially suitable for large-scale complex problems in engineering, such as ground heat utilization, sea energy development, mineral exploitation, multiphase flow and flow and heat transfer with complex structure. In this paper, the POD reduced-order model was used to calculate the heat transfer in a flat tube bank fin heat exchanger. The calculating results of the finite volume method (FVM) were adopted as the snapshot samples. SVD method was used to decompose the samples to obtain a series of bases and corresponding coefficients on sampling conditions. With these coefficients, interpolation method was used to calculate the coefficients on predicting conditions. And the physical field has been reconstructed using the bases and the interpolated coefficients directly. In the calculation of heat transfer unit of flat tube fin heat exchanger, air-side Reynolds number, transverse tube spacing and the fin spacing were chosen as the variables. The results obtained by the POD method are in good agreement with the results calculated by the FVM. Moreover, the POD reduced-order model presented in this paper is more advantageous in comparison with the FVM in terms of accuracy, suitability, and computational speed.
Authors and Affiliations
Ye Wang, Xintong Xia, Yi Wang, Liangbi Wang, Wenting Hu
Keywords
Related Articles
- EP ID EP422250
- DOI 10.26804/ager.2017.03.03
- Views 77
- Downloads 0
A review of stimulated reservoir volume characterization for multiple fractured horizontal well in unconventional reservoirs
Unconventional resource exploration has boosted U.S. oil and gas production, which is successfully by horizontal well drilling and hydraulic fracturing. The horizontal well with multiple transverse fractures has proven t...
Applications of digital core analysis and hydraulic flow units in petrophysical characterization
Conventional petrophysical characterizations are often based on direct laboratory measurements. Although they provide accurate results, such measurements are time-consuming and limited by instrument and environment. What...
Coalbed methane recovery from multilateral horizontal wells in Southern Qinshui Basin
Since 2006, more than 80 multilateral horizontal wells have been drilled in Panzhuang block, Southern Qinshui Basin. In this paper, 6 typical wells in a region are selected as an example. The thickness of coal, gas conte...
A new model for calculating permeability of natural fractures in dual-porosity reservoir
During the development of naturally fractured carbonate reservoirs, understanding the change in fracture permeability is the basis for production evaluation and scientific development. The conventional method of analyzin...
Adaptive time-splitting scheme for two-phase flow in heterogeneous porous media
In the present paper, an adaptive time-splitting scheme is introduced to investigate the problem of two-phase flow in heterogeneous porous media. The pressure and saturation equations are coupled by the capillary pressur...