Smoking and grilling are often used alternatively but actually, they are two different approaches to cook meat with two different techniques. it will be beneficial for you to know this to decide what you want to do with your meat. Grilling is the cooking of meat at high temperatures for a short time.it is used for smoking meat of fish, sausage, and other soft things. the heat source or fire is kept in direct contact with the food. Usually, it is a couple of inches away from meat. Smoking is the slow cooking of meat for a longer time at low temperatures.it is used for cooking tougher meat and bones. If the tougher meat is cooked at high temperature then the outer surface will get Cooked while the inner portion will remain uncooked. So smoking is used to Cook it at a low temperature so that the heat should be distributed evenly throughout the meat. in this technique, the heat source is not in direct contact with meat. the radiation from the fire can't reach the meat. but a deflection is used which deflects the smoke toward the meat to cook it slowly. If you are familiar with basic physics then you will be able to understand more clearly that the grilling uses conduction method to transfer heat from fire to meat .so heat is transferred directly from fire to meat While smoking uses the convection method where the low-temperature air coming from outside is moisturized by condensation and heat is transferred by smoke to the meat.