Computation of Force Traces for the Rolamite

1971 ◽  
Vol 93 (1) ◽  
pp. 47-52 ◽  
Author(s):  
R. V. Cadman
Keyword(s):  
Energy Analysis ◽  
Experimental Results ◽  
Analysis Computer ◽  
Computer Codes ◽  
Geometry Analysis

Rolamite geometries having rectangular and diamond cutouts are presented as examples illustrating the use of the geometry analysis computer codes for accurately predicting force traces. The resultant traces are quite different from those predicted by the simple energy analysis, and agree well with experimental results.

Experimental Research on Rotating Skimmer

2003 ◽  
Author(s):  
Minoru Chino ◽  
Kenji Takizawa ◽  
Takashi Yabe
Keyword(s):  
Experimental Research ◽  
Rotational Speed ◽  
Rotation Speed ◽  
Experimental Results ◽  
Injection System ◽  
Benchmark Test ◽  
Injection Speed ◽  
Structure Interaction ◽  
Wide Range ◽  
Computer Codes

This paper provides the experimental results on skimmer and gives some detailed information useful for benchmark test of computer codes that are now able to simulate the fluid-structure interaction. For this purpose, we specially designed the injection system that imposes reproducible rotational speed and injection speed on the skipper. The effect of rotation is discussed by changing rotation speed in a wide range.

scholarly journals Certification plan for reactor analysis computer codes

1990 ◽  
Author(s):  
H. Toffer ◽  
R.D. Crowe ◽  
K.N. Schwinkendorf ◽  
R.E. Pevey
Keyword(s):  
Analysis Computer ◽  
Computer Codes

Statistical Energy Analysis SEA: A Correlation Between Virtual and Experimental Results

2018 ◽  
pp. 211-220 ◽  
Author(s):  
Alessandro Ferraris ◽  
Alessandro Messana ◽  
Lorenzo Sisca ◽  
Francesco Santoro ◽  
Andrea Giancarlo Airale ◽  
...  
Keyword(s):  
Energy Analysis ◽  
Experimental Results ◽  
Statistical Energy Analysis

Systematic Qualification of the Coupled Neutron Transport and Thermal-Hydraulics Code DORT-TD/THERMIX

2008 ◽  
Author(s):  
Bismark Tyobeka ◽  
Andreas Pautz ◽  
Kostadin Ivanov
Keyword(s):  
Neutron Transport ◽  
Benchmark Problems ◽  
Coupling Scheme ◽  
Thermal Hydraulics ◽  
Comparison Of Results ◽  
Nuclear Systems ◽  
Analysis Computer ◽  
Computer Codes ◽  
Plant Data ◽  
Comparison Of The Results

In order to present credible results in nuclear design and safety analysis, computer codes must adhere to stringent qualification procedures imposed by nuclear licensing authorities. Such procedures form the basis for a quality assured verification and validation process. This is particularly true for advanced nuclear systems of Generation IV type, where little licensing experience exists as well as little or no plant data is available. Qualification of nuclear design and analysis codes can be achieved in various ways, namely: comparison of results from a code with results from another code i.e. code to code benchmarking; comparison of results from a given code with experimental results, i.e. code to experiment benchmarking; comparison of results from a given code with operational plant data; and finally, comparison of the results of a given code with known analytical solutions. In this paper, a systematic qualification of the coupled neutron transport and thermal hydraulics code DORT-TD/THERMIX is presented. As part of developing this coupled code to the level where it can be used as an independent tool by both designers of pebble-bed High-Temperature Gas-cooled Reactors (HTGRs) and regulators, an effort has been made to verify the coupling scheme as well as the validity of application for this code package. At these initial stages a code to code comparison has been adopted as the qualification method of choice. This is done for both steady-state and transient benchmark problems, ranging from simplified to detailed models. As shown in the results section, all benchmarks have been successfully recalculated and generally show good to very good agreement with the “reference” solutions.

Seal Analysis Computer Codes

1994 ◽  
Author(s):  
Wilbur Shapiro ◽  
Mahesh M. Athavale
Keyword(s):  
Analysis Computer ◽  
Computer Codes

Integral Testing of the AP600 Passive Emergency Core Cooling Systems

1993 ◽  
Vol 207 (4) ◽  
pp. 259-268 ◽  
Author(s):  
L E Hochreiter ◽  
S V Fanto ◽  
L E Conway ◽  
L K Lau
Keyword(s):  
Natural Circulation ◽  
Cooling Mode ◽  
Passive Safety Systems ◽  
Pressure Test ◽  
Integral Systems ◽  
Analysis Computer ◽  
Computer Codes ◽  
Core Cooling ◽  
Safety Systems

In support of the development of AP600, Westinghouse is conducting two integral systems tests to examine the performance of the passive safety systems. A full-height, full-pressure test is being performed to simulate a small loss-of-coolant, steam generator tube rupture and large steam line break events. A one-quarter scale, low-pressure test is being performed to simulate transients with emphasis on the transition to the natural circulation post-accident, long-term cooling mode and to demonstrate the long-term cooling capability. Each of the tests will provide detailed experimental results for verification of the accident analysis computer codes.

Geometry Analysis and Simulation in Shoe Centerless Grinding

2003 ◽  
Vol 125 (2) ◽  
pp. 304-309 ◽  
Author(s):  
Hong Zhang ◽  
Jungshen Lieh ◽  
David Yen ◽  
Xiaozhong Song ◽  
Xiaojian Rui
Keyword(s):  
Experimental Results ◽  
Critical Parameters ◽  
Centerless Grinding ◽  
Relationship Of ◽  
Geometry Analysis

In this paper, the geometry relationship of shoe centerless grinding for predicting the profile of workpiece is presented. Based on the model, critical parameters are studied. The model was compared with experimental results obtained from grinding trials.

scholarly journals Verification and validation plan for reactor analysis computer codes

1989 ◽  
Author(s):  
H. Toffer ◽  
R.D. Crowe ◽  
K.N. Schwinkendorf ◽  
R.E. Pevey
Keyword(s):  
Verification And Validation ◽  
Validation Plan ◽  
Analysis Computer ◽  
Computer Codes

scholarly journals A computational model that explores the effect of environmental geometries on grid cell representations

2017 ◽  
Author(s):  
Samyukta Jayakumar ◽  
Rukhmani Narayanamurthy ◽  
Reshma Ramesh ◽  
Karthik Soman ◽  
Vignesh Muralidharan ◽  
...  
Keyword(s):  
Cell Activity ◽  
Grid Cell ◽  
Point Of View ◽  
Experimental Results ◽  
Grid Cells ◽  
Computational Point ◽  
Model Code ◽  
Wide Range ◽  
Environmental Geometry ◽  
Geometry Analysis

AbstractGrid cells are a special class of spatial cells found in the medial entorhinal cortex (MEC) characterized by their strikingly regular hexagonal firing fields. This spatially periodic firing pattern was originally considered to be invariant to the geometric properties of the environment. However, this notion was contested by examining the grid cell periodicity in environments with different polarity (Krupic et al 2015) and in connected environments (Carpenter et al 2015). Aforementioned experimental results demonstrated the dependence of grid cell activity on environmental geometry. Analysis of grid cell periodicity on practically infinite variations of environmental geometry imposes a limitation on the experimental study. Hence we analyze the grid cell periodicity from a computational point of view using a model that was successful in generating a wide range of spatial cells, including grid cells, place cells, head direction cells and border cells. We simulated the model in four types of environmental geometries such as: 1) connected environments, 2) convex shapes, 3) concave shapes and 4) regular polygons with varying number of sides. Simulation results point to a greater function for grid cells than what was believed hitherto. Grid cells in the model code not just for local position but also for more global information like the shape of the environment. The proposed model is interesting not only because it was able to capture the aforementioned experimental results but, more importantly, it was able to make many important predictions on the effect of the environmental geometry on the grid cell periodicity.

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