Simulation and analysis of the change of shadow length based on MATLAB for a period of time

DOI

10.2991/icmemtc-16.2016.119How to use a DOI?

Keywords

Solar elevation;MATLAB; Nonlinear programming.

Abstract

We can get the relation of the solar altitude and latitude, the angel of equator and latitude and the solar hour angle according to the knowledge of astronomy. Then establish a mathematical model for the length of the shadow of straight bar, in accordance with the relation of height, the length of shadow of straight bar, and the solar elevation angle; Using the control variable method, the variation law of the length of the shadow is analyzed. Then take the value of each parameter into the model, and draw the length of straight bar between 9:00-15:00 Beijing Time by taking help from MATLAB , the length of shadow firstly short then become longer, minimum is 3.8411m, maximum is 8.7288m.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanbo Wang
PY  - 2016/04
DA  - 2016/04
TI  - Simulation and analysis of the change of shadow length based on MATLAB for a period of time
BT  - Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control
PB  - Atlantis Press
SP  - 604
EP  - 607
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmemtc-16.2016.119
DO  - 10.2991/icmemtc-16.2016.119
ID  - Wang2016/04
ER  -