The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relation...The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relationship between lift-off angle (α) and landing angle (β), relationship between the ratio of saltation length ( L) to maximum height (H) and lift-off angle as展开更多
Sand drift disasters are mainly manifested in the destruction by wind-sand currentto engineering installations, rapid aggravation of soil erosion, land desertification,etc. The reason for the damage lies in the fact t...Sand drift disasters are mainly manifested in the destruction by wind-sand currentto engineering installations, rapid aggravation of soil erosion, land desertification,etc. The reason for the damage lies in the fact that moving sand grains obtain largequantity of energy under the action of wind force. However, judgement of the intensi-ty of sand drift depends on the determination of energy accumluated by wind-sand cur-展开更多
文摘The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relationship between lift-off angle (α) and landing angle (β), relationship between the ratio of saltation length ( L) to maximum height (H) and lift-off angle as
文摘Sand drift disasters are mainly manifested in the destruction by wind-sand currentto engineering installations, rapid aggravation of soil erosion, land desertification,etc. The reason for the damage lies in the fact that moving sand grains obtain largequantity of energy under the action of wind force. However, judgement of the intensi-ty of sand drift depends on the determination of energy accumluated by wind-sand cur-
