Gap length evaluator uses Gap Length = Outer Radius-Inside Radius to evaluate the Gap Length, The Gap length formula is defined as the distance between two concentric spheres in free convection or the difference between the inside and outside radius. Gap Length is denoted by Lg symbol.
How to evaluate Gap length using this online evaluator? To use this online evaluator for Gap length, enter Outer Radius (r2) & Inside Radius (r1) and hit the calculate button.