Method for specifying requirements for a FORTRAN language processor

This paper reports a method of thermal analysis of expressway and the results of analysis of four expressways currently used in Japan. The authors built a mathematical model based on the principle of thermal conduction. For the boundary conditions in this mathematical model the influence of solar radiation, wind and air temperature etc. are taken into consideration. Explicit finite difference method is used in the analysis. The authors made an analysis program in Fortran language. Four main expressways distributing from the northern to the southern in Japan are chosen as the objects of this study. The observed weather data of the hottest days experienced by these expressways during the past 30 years is input into the computer calculation. The basic mechanism of expressway temperature change and effect factors are illuminated. The results are reported and discussed.

Download Full-text

A Hybrid Programming with C++ and Fortran for Geostatistical Modeling in Reservoirs

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.805-806.1925 ◽

2013 ◽

Vol 805-806 ◽

pp. 1925-1928

Author(s):

Yuan Hui Liao

Keyword(s):

Petroleum Industry ◽

Multiple Point ◽

Geostatistical Modeling ◽

Hybrid Programming ◽

Fortran Language

This is the first paper using C++ to develop an interface for the newly-published Multiple-point geostatistics (Snesim) in petroleum industry. The Snesim is programmed in Fortran language and is encapsulated to DLL(dyanamic link library) , and the integration of Fortran DLL and C++ is then programmed. The hybrid programming with C++ and Fortran both utilizes the merits of the friendly interface of C++ and the powerful computation ability of Fortran. The small software by this method is developed and put into use in reservoir geostatistical modeling and got much economical effects.

Download Full-text

Dynamic Anti-Plane Characteristics at Outer Tip of an Interfacial Crack near a Circular Cavity in Piezoelectric Bi-Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.684.88 ◽

2014 ◽

Vol 684 ◽

pp. 88-93

Author(s):

Tian Shu Song ◽

Ahmed Hassan

Keyword(s):

Present Model ◽

Interfacial Crack ◽

Transversely Isotropic ◽

Physical Parameters ◽

Circular Cavity ◽

Dynamic Stress Intensity Factors ◽

Language Program ◽

Simulation Techniques ◽

Fortran Language ◽

Piezoelectric Devices

A theoretical analysis is followed to calculate the dynamic stress intensity factors (DSIFs) in transversely isotropic piezoelectric bi-materials, due to existence of a permeable interfacial crack, near the edge of a circular cavity. The model is subjected to dynamic incident anti-plane shearing (SH-wave) and the formulation based on Green's function method. Conjunction and crack-simulation techniques are applied to obtain DSIFs at the crack’s outer tip. Calculations are prepared based on FORTRAN language program. A comparison is accomplished between the present model and another model with a crack emerging from the cavity edge to calibrate the program. Calculating results showed the influences of the physical parameters, the structural geometry and the wave frequencies on the dimensionless DSIFs and how those affected the efficiency of piezoelectric devices and materials.

Download Full-text

Development and Experimental Validation of a Modelling Tool for Humid Air Turbine Saturators

Volume 3: Controls, Diagnostics and Instrumentation; Cycle Innovations; Marine ◽

10.1115/gt2010-23338 ◽

2010 ◽

Author(s):

Francesco Caratozzolo ◽

Alberto Traverso ◽

Aristide F. Massardo

Keyword(s):

Energy System ◽

Simulation Software ◽

Transient Condition ◽

Contact Heat ◽

C Language ◽

Air Turbine ◽

Power Group ◽

Mass Flow Rates ◽

Fortran Language ◽

The University

This work presents the re-engineering of the TRANSAT 1.0 code which was developed to perform off-design and transient condition analysis of Saturators and Direct Contact Heat Exchangers. This model, now available in the 2.0 release, was originally implemented in FORTRAN language, has been updated to C language, fully coded into MATLAB/Simulink® environment and validated using the extensive set of data available from the MOSAT project, carried out by the Thermochemical Power Group of the University of Genoa. The rig consists of a fully instrumented modular vertical saturator, which is controlled and monitored with a LABVIEW® computer interface. The simulation software showed fair stability in computation and in response to step variation of the main parameters driving the thermodynamic evolution of the air and water flows. Considering the actual mass flow rates, a geometric similitude was used to avoid calculation instability due to flows under 100 g/s. Overall the model proved to be reliable and accurate enough for energy system simulations.

Download Full-text