Group Name of Students
1
1. Abayneh Debero Ano
2. Abdi Jebel Abadura
3. Abdulwahab Hussen Said
4. Abdulwahid Rahmeto Shukur
5. Alamudin Kadir Abdulla
6. Alfa Fasil Debele
2
1. Amanuel Alemayehu Wari
2. Amin Sabit Mohammed
3. Ararsa Birhanu Gajea
4. Basho Tamiru Gondol
5. Bayisa Birhanu Alemu
6. Bilen Shewangizaw Kebede
3
1. Bitania Esayas Shember
2. Bruk Getahun Desta
3. Dejene Hailu Mengistu
4. Edlawit Birhanu Desta
5. Eyerusalem Cherkos Teklu
6. Eyerusalem Shawul Biru
4
1. Haile Nega Tafa
2. Hanim Hamdu Jemal
3. Kalkidan Demsew Befekadu
4. Kalkidan Teklay Gebremikael
5. Meskelu Worku Gelgelo
6. Natnael Eshetu Terefe
5
1. Samirawit Hayimanot Milkesa
2. Selamawit Getachew Asefa
3. Sifen Asfaw Duguma
4. Sifen Girma Dame
5. Tirsit Dereje Dechasa
6. Yisak Zenebe Mekonnen
Maximum Mark (10%)
Group 1: Fundamentals of Multiphase Flow (Gas–Liquid Systems)
Focus

Definition of multiphase flow

Properties of gas–liquid systems

Phase distribution, holdup, slip velocity

Why multiphase flow is complex in pipelines
Tasks

Explain key terms with sketches

Show factors affecting gas–liquid flow (velocity, pipe diameter, density difference)
Output

Conceptual diagrams + explanations
Group 2: Bubbly and Slug Flow in Pipelines
Focus

Bubbly flow characteristics

Slug flow characteristics

Transition between bubbly ↔ slug flow

Pressure fluctuation and operational problems
Tasks

Draw both regimes clearly

Explain where they occur in industry (vertical & horizontal pipes)
Output

Regime sketches + explanation of problems caused by slug flow
Group 3: Stratified Flow and Flow Regime Maps
Focus

Stratified flow characteristics

Stratified smooth vs stratified wavy

Introduction to flow regime maps

How engineers predict regimes
Tasks

Draw a typical flow regime map

Explain axes and boundaries
Output

One complete regime map with explanation
Group 4: Gas–Solid and Liquid–Solid Flows
Focus

Gas–solid flow (pneumatic conveying, fluidized bed)

Liquid–solid flow (slurry transport)

Particle motion, drag force, settling velocity
Tasks

Compare gas–solid vs liquid–solid

Show equations for settling and drag
Output

Comparison table + diagrams
Group 5: Applications in Distillation, Absorption, and Reactors
Focus


Multiphase flow inside:
o
Distillation columns
o
Absorption columns
o
Bubble column & slurry reactors
Effect of flow regime on mass transfer
Tasks

Draw equipment diagrams

Explain how multiphase behavior improves or reduces efficiency
Output

Industrial examples + diagrams
Presentation Instructions for All Groups
Each group must include:
1. Theory
2. Governing equations
3. Diagrams
4. One real industrial example
5. 15-minute presentation + 5-minute Q&A
6. Deadline for PPT (soft copy) submission is April 10, 2026.