Fast Prediction of the Temperature Field Surrounding a Hot Oil Pipe Using the POD-BP Model
نویسندگان
چکیده
The heat transfer assessment of a buried hot oil pipe is essential for the economical and safe transportation pipeline, where basis to determine temperature field surrounding quickly. This work proposes novel method efficiently predict pipe, which combines proper orthogonal decomposition (POD) backpropagation (BP) neural network, named POD-BP model. Specifically, BP network used establish mapping relationship between spectrum coefficients preset parameters sample. Compared with classical POD reduced-order model, model avoids solving system governing equations as variables, thus improving prediction speed. Another advantage that it easy implement does not require tremendous mathematical derivation equations. then sample matrix obtained from numerical results using finite volume (FVM). In validation cases, both steady unsteady states are investigated, multiple boundary conditions, thermal properties, even geometry (different depths diameters) tested. mean errors cases 0.845~3.052% 0.133~1.439%, respectively. Appealingly, almost no time, around 0.008 s, consumed in predicting situations proposed while FVM requires computational time 70 s.
منابع مشابه
the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach
abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
15 صفحه اولthe effect of using model essays on the develpment of writing proficiency of iranina pre-intermediate efl learners
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
investigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
Prediction of Temperature Distribution in the Hot Torsion Test Specimen
Hot torsion test (HTT) has extensively been used to analysis and physically model flow behavior and microstructure evolution of materials and alloys during hot deformation processes. In this test, the specimen geometry has a great influence in obtaining reliable test results. In this paper, the interaction of thermal-mechanical conditions and geometry of the HTT specimen was studied. The commer...
متن کاملassessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Processes
سال: 2023
ISSN: ['2227-9717']
DOI: https://doi.org/10.3390/pr11092666