Speaker
Ms
Benjamas Ponboonjaroenchai
(Department of Physics, Faculty of Science, Kasetsart University, Bangkhen, Bangkok, 10900, Thailand.)
Description
Spiral waves have been investigated in many different excitable media. A set of multiarmed spiral waves is a spacial self-organization and rarely studied in experiments because they are difficult to be created. We present a method to generate multiarmed spiral waves pinned to an unexcitable circular obstacle in a thin layer of the Belousov-Zhabotinsky reaction using a partition method. A thin rectangle and a thin disk made from chemically innert plastic (acrylic) are used as the partition and the obstacle, respectively. We demonstrate an initiation of three-armed spiral waves.
Author
Ms
Benjamas Ponboonjaroenchai
(Department of Physics, Faculty of Science, Kasetsart University, Bangkhen, Bangkok, 10900, Thailand.)
Co-authors
Dr
Chaiya Luengviriya
(Department of Physics, Faculty of Science, Kasetsart University, Bangkhen, Bangkok, 10900, Thailand.)
Dr
Jiraporn Luengviriya
(Lasers and Optics Research Group, King Mongkut’s University of Technology North Bangkok, 1518 Pibulsongkram Road, Bangkok 10800, Thailand)
Mrs
Malee Sutthiopad
(Department of Physics, Faculty of Science, Kasetsart University, Bangkhen, Bangkok, 10900, Thailand.)
Mr
Nakorn Kumchaiseemak
(Department of Physics, Faculty of Science, Kasetsart University, Bangkhen, Bangkok, 10900, Thailand)
Mr
Piyachat Wungmool
(Department of Physics, Faculty of Science, Kasetsart University, Bangkhen, Bangkok, 10900, Thailand.)
