1. Lecturer, Heat Transfer Laboratory, Dept. of Mechanical Engineering, Ben-Gurion Univ. of the Negev, Post Office Box 653, Beer-Sheva 84105, Israel.
2. Research Engineer, Heat Transfer Laboratory, Dept. of Mechanical Engineering, Ben-Gurion Univ. of the Negev, Post Office Box 653, Beer-Sheva 84105, Israel.
3. Professor and Head, Heat Transfer Laboratory, Dept. of Mechanical Engineering, Ben-Gurion Univ. of the Negev, Post Office Box 653, Beer-Sheva 84105, Israel.