In recent decades, international trade has evolved into a complex system of trade barriers to ensure the protection of domestic industry and its workers interests. However as tariffs have fallen and international trad...In recent decades, international trade has evolved into a complex system of trade barriers to ensure the protection of domestic industry and its workers interests. However as tariffs have fallen and international trade tends to be free trade, countries have found another way of protecting domestic industries from foreign competition—non-tariff protection. Among them anti-dumping is the most controversial subject that is involved in the foreign trade. This theme will analyze the reason and effect of growing use anti-dumping measures by countries in recent decades and try to give some possible solutions.展开更多
The dump diffuser is an important component in advanced annular combustor, and its performance affects greatly the fluid field and pressure loss of the combustor. This paper presents the characteristics of the total p...The dump diffuser is an important component in advanced annular combustor, and its performance affects greatly the fluid field and pressure loss of the combustor. This paper presents the characteristics of the total pressure loss. Experiments and numerical simulations, keeping the inlet March number of prediffuser constant ( Ma =0 20), are carried out to obtain the regularity of the total pressure loss. It varies with the relative dump gap ( δ =1 2～3 0)by changing the position of prediffuser and combustor liner, respectively. Research shows that there exists the minimum total pressure loss ( σ *=1 6%～1 75%) when relative dump gap δ is about 1 8.展开更多
文摘In recent decades, international trade has evolved into a complex system of trade barriers to ensure the protection of domestic industry and its workers interests. However as tariffs have fallen and international trade tends to be free trade, countries have found another way of protecting domestic industries from foreign competition—non-tariff protection. Among them anti-dumping is the most controversial subject that is involved in the foreign trade. This theme will analyze the reason and effect of growing use anti-dumping measures by countries in recent decades and try to give some possible solutions.
文摘The dump diffuser is an important component in advanced annular combustor, and its performance affects greatly the fluid field and pressure loss of the combustor. This paper presents the characteristics of the total pressure loss. Experiments and numerical simulations, keeping the inlet March number of prediffuser constant ( Ma =0 20), are carried out to obtain the regularity of the total pressure loss. It varies with the relative dump gap ( δ =1 2～3 0)by changing the position of prediffuser and combustor liner, respectively. Research shows that there exists the minimum total pressure loss ( σ *=1 6%～1 75%) when relative dump gap δ is about 1 8.
