A numerical study of contact force in competitive evacuation Project supported by the National Natural Science Foundation of China (Grant No. 71473207) and China Fundamental Research Funds for Central Universities (Grant No. 2682016cx082). |
(color online) Vector contact force and the scalar contact force at a desired velocity of 1.5/s at time (a) 30 s, (b) 40 s, (c) 160 s, and (d) 180 s respectively (the arrow is the vector contact forces and the contour is the scalar contact forces. |