I am currently writing my thesis in English as an non-native speaker. From time to time, I struggle quite a bit with the correct expression of the sentences. Could you have a look on the highlighted sentence below? I am quite unsatisfied with the expression. What do you think? Do you understand the sentence?
Thank you for any help!
In this expression, K and fd are the incremental pressure drop number and Fanning friction factor for fully developed flow. C is a constant dependent on the geometry of the duct cross-section, while the dimensionless entrance length z+ is defined by:
with z_h as the hydrodynamic entrance length, given by:
Since the hydrodynamic entrance length either exceeded, or almost reached the total channel length L over the entire range of Reynold numbers considered for the validation, a fixed value of z_h=L was applied here.