Cube the beef into 1/2 to 3/4 inch cubes. Dredge in flour, salt and pepper. Brown beef in the hot oil in a dutch oven Remove beef. Saute onions and celery until softly caramelized, about 5-6 minutes. Return the beef to the pan. Add tomatoes, water, bouillon bay leaf and bring to a boil. Add the barley. Reduce heat and simmer for 2 - 3 hours. If soup becomes too thick, add water. Barley will blossom as it cooks.