الفهرس 
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Abstract
Governments and different international organizations create an almost global awareness of the risks and damage associated with oil spills . In recent years, a number of accidents involving oil tankers, storage tanks and pipelines have resulted in introduction of relatively large quantities of oil into marine environment
There are a number of methods available for dealing with oil spills:
1- Chemical removal method: by spraying the oil slick by chemical substances . this method has many side effects to the marine environment
2- Mechanical removal method: mechanical removal of oil is generally considered as having certain advantages over chemical removal as no additional substances are introduced into the marine environment , in addition that the oil removed mechanically can be reused
One of the most effective mechanical devices that can be used is a skimmer
In this work, the effects of different parameters on disk skimmer characteristics are investigated experimentally and theoretically.