1. Mechanical Engineering Dept., King Fahd Univ. of Petroleum and Minerals, Dhahran 31261, Saudi Arabia (corresponding author).
2. Mechanical Engineering Dept., King Fahd Univ. of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
3. Systems Engineering Dept., King Fahd Univ. of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.