1. Graduate Student, Dept. of Aerospace Engineering, Sejong Univ., Seoul 143-747, Republic of Korea.
2. Professor, Dept. of Aerospace Engineering, Sejong Univ., Seoul 143-747, Republic of Korea (corresponding author). ORCID: .
3. Professor, Dept. of Aerospace Engineering, Sejong Univ., Seoul 143-747, Republic of Korea.